Edited By
Carlos Ramirez
A solar energy enthusiast raises eyebrows about mining profitability, expressing skepticism over the effectiveness of the Antminer s21. Despite having free power, users argue that potential returns may not justify the hefty investment.
In 2025, individuals leveraging solar energy for mining are questioning the cost-benefit ratio of their investments. One user recently pointed out that even with surplus energy, it would take 250 days of nonstop operation to cover the $4,000 price tag of the s21 Antminer. However, due to solar limitations, most can only run it for a fraction of a day, stretching the roi over almost three years.
Several comments highlight the shared skepticism:
Options Over s21: One commentator recommends the A2 model over the s21, suggesting that older models yield a quicker return on investment, particularly for users without power costs.
Power Efficiency: Another user mentions running a cheaper model at 1800 watts, emphasizing that these machines operate more efficiently and cooler, ensuring higher performance.
Maintenance Outlook: The conversation also touches on Bitmain's handling of s21 repairs, raising concerns over the brand's reliability.
"The Antminer cost $4k and mines around $16 per dayβsure today, but what about tomorrow?"
Users display a negative sentiment toward the current profitability of mining with the s21 Antminer, expressing frustration and caution. The overwhelming curiosity revolves around whether newer machines will improve this bleak outlook or simply amplify the risks involved in crypto mining.
β³ Users express doubts about s21 Antminer feasibility amid rising costs.
β Cheaper models may yield faster returns for solar-powered setups.
β οΈ Reliability concerns about brand maintenance practices continue to surface.
As solar energy becomes more available, can the crypto industry adapt to ensure miners truly profit? Only time will tell in this evolving digital landscape.
Looking ahead, thereβs a solid chance that market conditions will force a shift in mining strategies throughout 2025. With profit margins tightening for machines like the Antminer s21, experts estimate that we may see a rise in more affordable, efficient models that utilize renewable energy sources effectively. As awareness of the sustainability aspect grows, miners might also pivot towards solar or wind-powered setups in greater numbers. New technologies that enhance processing power without exponentially increasing energy costs are likely to emerge. If these trends play out as expected, we could see a gradual resurgence in mining profitability, perhaps rejuvenating interest and investments in the sector overall.
In many ways, the current skepticism surrounding crypto mining mirrors the sentiment during the rise of home computing in the late 1970s and early 1980s. Just as enthusiasts hesitated to invest in bulky computers with uncertain futures, todayβs miners grapple with the complexities of a nascent market. Back then, people were unsure if personal computers would become a household staple or fade into obscurity. Fast forward to today, and the landscape has dramatically changed. This illustrates that tech trends may appear daunting at first, but those who adapt and innovate often find tremendous opportunities hidden behind that uncertainty.